It was discovered long before 2004 guys, , , duhhhhhParts of this "belly band" had been spotted in Voyager images as a line of bright moutain peaks -- now referred to as the Voyager mountains -- jutting above the dark terrain along the equator. No other solid-surfaced body in the solar system has a self-defined equator.
![Rolling Eyes :roll:](./images/smilies/icon_rolleyes.gif)